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Delayed-Detached-Eddy Simulation of Near-Stall Axial Compressor Flow with Varying Passage Numbers

  • Ruben van RenningsEmail author
  • Ke Shi
  • Song Fu
  • Frank Thiele
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 117)

Abstract

For highly loaded compressor blades a significant improvement in performance prediction of hybrid RANS-LES methods compared to widely used RANS methods has been observed. The flow in an axial compressor close to stall conditions is simulated by DDES calculations on two different geometrical models to investigate the influence imposing periodicity of different domain sizes on the flow. Time traces of integral forces are compared for both configurations. Time averaged results of the simulations are compared to experiments. It is found that the direct periodicity of the one blade domain damps important features of the separated flow. This is expected to be particularly relevant to the phenomenon of Rotating Instability.

Keywords

Compressor Blade Inlet Guide Vane Compressor Cascade Integral Force Vary Passage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Ruben van Rennings
    • 1
    Email author
  • Ke Shi
    • 2
  • Song Fu
    • 2
  • Frank Thiele
    • 1
  1. 1.Department of Fluid Dynamics and Engineering AcousticsTechnische Universität BerlinBerlinGermany
  2. 2.School of AerospaceTsinghua UniversityBeijingP.R. China

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